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Green Roofing Cuts Costs

机译:绿色屋顶削减成本

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You can't see it from ground level, but Chicago (Illinois, USA) boasts the highest expanse of green roof area in North America. A green roof involves the creation of "contained" green space on top of a building or other human-made structure. The system is an extension of the existing roof. It includes a waterproofing and root repellant system, a drainage system, filter cloth, a lightweight growing medium, and plants (www.greenroofs.net). According to Chris Counts, a landscape architect with Michael Van Valkenburgh Associates Inc., green roofs generally use much shallower soil depths than gardens (between 3 and 6 inches) and lightweight aggregate soils, rather than typical garden soil.
机译:你不能看到它从地面,但芝加哥(美国伊利诺斯州)拥有最高的绿色屋顶在北美地区。涉及”包含“绿色空间的创造的建筑或其他人造结构。现有的屋顶。根防水系统,排水系统,过滤器布,一个轻量级的生长介质,和植物(www.greenroofs.net)。一个景观设计师迈克尔·范Valkenburgh Associates Inc .,绿色屋顶一般用较浅的土壤深处多花园(3至6英寸)和轻量级土壤总土壤,而不是典型的花园。

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